My wife and I went and saw it today. Both of us really enjoyed it. I'd say that its not as good as 1 or 2 but definitely better than 3. The fact that it was PG-13 didn't really have any effect on the action. Justin Long wasn't as annoying as I expected either. In fact, he was pretty funny. Kevin Smith was a riot too.
"Blu-ray is just a bag of hurt." - Steve Jobs